Another Day in the Undivided Capital

There are two things that are incomprehenisble to me here. The first is the sort of blind hatred that leads to an attack like this. The second is why must this village remain part of an enternal undivided Jerusalem? As the Ynet report states, this is a "village," not a neighborhood mind you, "in Jerusalem." In other words a city within a city. What is eternal or undivided about that?